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RECONNAISSANCE RECONNAISSANCE SURVEILLANCE AND SURVEILLANCE AND TARGETING VEHICLETARGETING VEHICLE

(RST-V)(RST-V)

RECONNAISSANCE RECONNAISSANCE SURVEILLANCE AND SURVEILLANCE AND TARGETING VEHICLETARGETING VEHICLE

(RST-V)(RST-V)

Mike Byerly, COROffice of Naval Research

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RECONNAISSANCE, SURVEILLANCE, & RECONNAISSANCE, SURVEILLANCE, & TARGETING VEHICLE (RST-V)TARGETING VEHICLE (RST-V)

Schedule:Technical Approach:• Joint DARPA, USMC• Technology Demonstration (TD) Program• Utilize the 845/804 OT Acq. Strategy• Design, build, and evaluate advanced HED,

survivability, and automotive technologies• Evaluate during AWE’s, User Demos• Transition to MEFFV, SOCOM, USMC,

Army

Objective:• Develop and demonstrate advanced hybrid

electric drive and survivability technologies for lightweight recon/scout vehicles deployable via V-22 aircraft

Capabilities:• High tactical mobility and fuel efficiency• V-22 internally transportable • Silent Operations/Integrated survivability• Onboard power for payloads, aux

systems• Multi-Service/Program technology feed

Transition/program end

TASKS FY01 FY02 FY03 FY04

Integrated Product Teams

TD design improvements

TD fabrication/test

Gov’t testing/demos

Deliver vehicles to Govt

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System ConceptSystem Concept

V-22 Internal Transport– Deployment Ready– Tactical and Deep Insertion – 10 Day Mission

Integrated Survivability- Ballistic- AP Mine- Managed Signature

Hybrid Electric Drive- Improved Fuel Economy- Improved Range- Extended Silent Watch

5000 M.

±360°

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Variable SpeedCooling Fans

Key Automotive FeaturesKey Automotive FeaturesKey Automotive FeaturesKey Automotive Features

HV Batteries Low but, Accessible

Steering Rack

Modular FoldingSuspension AssyFits All Corners

Stiff, Closed, Low-profile Frame,All Aluminum Construction

155 Hp Commercial Diesel

IndependentlyRemovablePropulsionElements

Wheel Motor Assy

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Key SubsystemsKey Subsystems Key SubsystemsKey SubsystemsWheel Drive Unit

- MM Permanent Magnet Motor- Modular Design- Push Start With Dead Batteries- Torque 3660 Nm (Peak) 3030 Nm (Continuous)

PM MOTOR

20”WHEEL

PLANETARYMODULE

Energy Storage- Saft Lithium-Ion Battery Technology- EV Optimized Battery Chosen for Application- 2 Packs, 60 HE 44 Cells - ~234V- Burst Power 60 kW

IC Engine- DDC TD DI-4V, 2.5 liter, - Maximum intermittent power 105 kW (141

hp) at 3800 rpm- Common Rail Direct Injection Diesel- Turbocharged, Intercooled

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•1st two vehicles used as automotive test rigs•2nd two vehicles, configured as 2nd generation with lessons learned incorporated•Demonstrated superior mobility and survivability over current vehicles (HMMWV, IFAV)•Accumulated >6500 km on fleet, mixed terrain. - 1000 mile road march - 1000 mile off-road testing for FCS LSI • Packaged and demonstrated in-hub electric drive, high density electrical power conversion, and high density hybrid energy storage

Program StatusProgram Status

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Recent AccomplishmentsRecent AccomplishmentsRecent AccomplishmentsRecent Accomplishments

Demonstrated the following capabilities during The Technical Performance Measure Testing at Bosch Automotive Proving Ground, April 2003:

• Ascended 60% vertical slope in all three modes (engine-only, battery-only, and hybrid-electric)

• 20 miles run on silent run mode with 8440 lbs GVW (battery-only), top speed 57 MPH

• Negotiated 24 inch vertical step in both forward and reverse directions

• Maintained a speed of not less than 70 mph on dry, level surface for 20 minutes with no component malfunction • Traversed a 60 inch ditch from complete stop

• Acceleration: • 0 – 30 MPH, 3.4 sec (HMMWV 9.4 sec)• 0 – 60 MPH, 12.1 sec (HMMWV 26.1 sec)

60% Grade Climb

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Contractor TPM TestingContractor TPM Testing Contractor TPM TestingContractor TPM Testing

RST-V RST-VEvent Achieved Goal HMMWV *

0-30 MPH 3.41 sec 4 sec 9.4 sec

0-60 MPH 12.1 Sec 15 sec ( 0 - 50 ) 26.1 sec

Top Speed 70 MPH 70 MPH 70 MPH

Top Speed on Batteries (Recorded) 57 MPH No Goal 0 MPH

Distance on Battery (GVW 6800 lbs) 23 miles 20 miles 0 miles

Distance on Battery (GVW 8440 lbs) 20 miles 20 miles 0 miles

Step Climb 24 inches 15 inches No Data

Negotiate 60% Slope (All 3 Modes) Yes Yes No

* All data drawn from AM General HMMWV brochure.

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RST-VRST-V PerformancePerformance

BASELINE RST-V

18"

68"79"

195"

60.0

winchspaceclaim

73"

45°

60°60°

24"

130

68

66

(62"w/armor)60"

CharacteristicsRST-V Design

HMMWV (M1025A2)

RST-V Measured

Gross Vehicle Weight 8000 lbs 10300 lbs 8440 lbsChassis Width 60 in 84 in 60 inApproach Angle 60 deg. 60 deg. 60 deg.Departure Angle 60 deg. 40 deg. 60 deg.Reducible Height 65.0 in 72 in 65.0 inGround Clearance 4-24 in (variable) 15.3 in 4-24 in (variable)Acceleration 0-30 mph 4 sec 9.4 sec 3.4 sec 0-60 mph 15 sec 25+ sec 12.1 secBraking 30-0 mph 69 ft. 47 ft. 60-0 mph 256 ft. 195 ft.Step Climb 16 in 16 in 24 inGradeability (HEV) 60% 60% 60% (Batteries) No Requirement Not Applicable 60%Side Slope 40% 40% >40% (90% on tilt table)

Range on Batteries 20 mi Not Applicable 23 miDash Speed 70 mph 70 mph 70 mphDash Speed (Batteries) No Requirement Not Applicable 57 mphSustained Highway Speed 68 mph (tire limited) 70 mph 68 mph (tire limited)

Payload 3000 lbs 3520 lbs 3000 lbs (by analysis)

Air Transport V-22, CH53, CH47 C130 V-22, CH53, CH47 (by analysis)

Range (HEV) 450 mi 270 mi test pendingRelative Fuel Economy 1.5-2.0 x Reference test pendingFording Depth 36 in 36 in 36 in (by analysis)

Ride Limiting Speed ~22 mph ~12 mph test pendingVCI - Off Road (25% Deflection) 19.8 20.2 19.8 (by analysis)

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UpcomingUpcoming EventsEventsUpcomingUpcoming EventsEvents

• Continue Technical Performance Measure Testing, Muskegon, MI (June 03)

• Joint User Evaluation and Testing, Yuma proving Ground, AZ (August 03)

USMC and SOCOM participant

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• Late FY 03 start; Objective is to convert a RSTV into a 60 kW mobile power generator to reduce battlefield logistical burden

60 kW Generator Retrofit60 kW Generator Retrofit60 kW Generator Retrofit60 kW Generator Retrofit

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Retrofit vs. “Clean-Sheet” Vehicle DevelopmentRetrofit vs. “Clean-Sheet” Vehicle DevelopmentRetrofit vs. “Clean-Sheet” Vehicle DevelopmentRetrofit vs. “Clean-Sheet” Vehicle Development

JTEV HTTV

HTTMMP w/AEDT RSTV

HE-HMMWV

• Proven, user-accepted military platform

• Reliable automotive systems in place

• Economies of scale advantages

• Limited design flexibility

• May be forced to choose sub-optimal components

• High degree of design flexibility

• Fresh ideas easier to implement

• Sometimes forced to custom components

• High maintenance burden

• Always something to “tinker” with